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4th Grade Science

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Question
Answer
hurricane   a dangerous storm made up of swirling bands of thunderstorms with speeds at least 117 km/hr  
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Tropical depression   a low pressure air mass that froms over warm water and has swirling winds that can be as strong as 61 km/hr  
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Tropical storm   a low pressure air mass that forms over warm water and has swirling winds that are more than 61km/hr but less than 119 km/hr  
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Storm Surge   water pushed ahead onto shore by a the winds outside the eye wall of a hurricane  
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What is the source of a hurricane's energy   The transfer of the heat from the warm ocean water into the air  
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How does a hurrican cause damage   Strong winds; flooding; mudlides; storm surges & strong waves  
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What types of information can hurricane model give?   Strength, direction, and speed  
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Tornado   a rapidly spinning column of air that comes down out of a thunderstorm cloud and touches the ground  
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Vortex   a spinning funnel-shaped are in a fluid  
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Caracteristics of a tornado   Forms over land; hundreds of METERS across; lasts only a few minutes  
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Characteristics of a hurricane   forms over water; hundreds of KILOMETERS across; can last for days  
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tornado watch   tornados are likely to form within a few hours  
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tornado warning   a tornado has been detected on radar  
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dust devil   column of whirling air - NOT A TORNADO - not part of a thunderstorm Common where columns of hot air rise  
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waterspout   a rapidly spinning column of air over a lade or ocean. Usually weaker than tornados  
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Created by: czeponis
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